Supramolecular systems that connect a naphthalene-1,4:5,8-bis(dicarboximide) (NDI) radical anion donor to Mn(bpy)(CO)3Br or Re(bpy)(CO)3Cl CO2 reduction catalysts via a methylene bridge have been synthesized and studied by femtosecond transient visible, near-infrared and mid-infrared spectroscop...

Chagas’ disease is endemic in Central and South American countries. Specific chemotherapy with nifurtimox or benznidazole has been recommended for treatment of recent infection but they have limited efficacy. The natural products veraguensin (1) and grandisin (2) have shown potent in vitro acti...

Nylon-6,6 was synthesized in cetyltrimethylammonium chloride reverse micelles adsorbed on silica surfaces to study the feasibility of preparing a surface modified with grafted polyamide brushes using the immobilized reverse micelle as a microreactor. The nylon-modified silica gel preparation pro...

A series of metal coordination polymers of Mn(II), Fe(II), Co(II), Ni(II), Cu(II), and Zn(II), obtained by the reaction of metal acetate with newly synthesized adipoyl bis(isonicotinoylhydrazone) (ADBI) have been investigated. The ligand has been characterized by 1H NMR, 13C NMR, FTIR, and ESI m...

The aluminium chloride catalysed Friedel-Crafts reaction between adipoyl chloride and bromobenzene has been re-examined. At elevated temperatures a number of side products are produced including a cyclopentane epoxide. The structure of this epoxide was elucidated by nmr and ir spectroscopy and i...

SAPO-35 was synthesized using hexamethyleneimine template in non-aqueous systems. X-ray diffraction and scanning electron micrograph analysis shows the synthesized sample is pure and well crystalline. Presence of four stages (1.6%, 0.8%, 7.8% and 8.4%) of weight loss is observed by TG/DTA analys...

A novel route for synthesis of MCM-49/ZSM-35 composite zeolites with different compositions in a mixed amine system containing hexamethyleneimine (HMI) and cyclohexamine (CHA) has been developed. Furthermore, both MCM-49 zeolite and ZSM-35 zeolite can be successfully synthesized by adjusting the...

A small-pore silicoaluminophosphate molecular sieve, SAPO-35 was synthesized using hexamethyleneimine template and aluminium isopropoxide as aluminium source in aqueous media is reported for the first time. Pure, highly crystalline samples were obtained in short period (96 h). The samples crysta...

Locations of Lewis acid sites (LASs) on three MWW-type zeolites, the conventional Al-containing MWW zeolite (Al-MWW), acid-treated Al-containing MWW zeolite (Al-MWW-AT) and interlayer-expanded Al-containing MWW zeolite (Al-IEZ-MWW), were clarified by IR method using hexamethyleneimine (HMI), piv...

A new cyclosilicate hydrate with composition (C6H14N)4·[Si8O16(OH)4]·12H2O was crystallized and the structure determined by single-crystal X-ray diffraction. The structure, described by the tetragonal space group I41/a, with unit cell dimensions of a = 39.2150(2) Å and c = 14.1553(2) Å, contai...

The nickel(II) complexes of the compositions [Ni(hmidtc)(bpy)2]ClO4 (I), [Ni(hmidtc)(phen)2]ClO4 (II), [Ni(hmidtc)(phen)2]SCN (III), [Ni(hmidtc)(phen)2]PF6 (IV), [Ni(hmidtc)(phen)2]BPh4 (V), [Ni(hmidtc)(phen)2]AcO·2H2O (VI) and [Ni(hmidtc)(phen)2]Br·H2O (VII), involving a combination of one he...

An Aluminophosphate with sequence number Six Teen (AST) type framework silico alumino phosphate (SAPO-16) molecular sieve is successfully synthesized through an eco-friendly, economic and a faster crystallization method by microwave treatment. In the present investigation, SAPO-16 is synthesized...

A series of new platinum(II) and platinum(IV) complexes of the type [PtII(HMI)2X] (where HMI=hexamethyleneimine, X=dichloro, sulfato, 1,1-cyclobutanedicarboxylato [CBDCA], oxalato, methylmalonato, or tatronato) and [PtIV(HMI)2Y2Cl2] (where Y=hydroxo, acetato, or chloro) were synthesized and char...

Densities of pure hexamethyleneimine and of its aqueous solutions have been measured at atmospheric pressure, using an Anton Paar digital vibrating tube densimeter, from 273.16 to 363.15 K and from 283.15 to 353.15 K, respectively. Acceptable representations of experimental data are found using ...

Two kinds of zeolites (mordenite and AlPO4-5, with MOR and AFI topology, respectively) have been synthesized using hexamethyleneimine (HMI) as structure directing agent. It is found that HMI is incorporated intact in its protonated form in MOR and AFI. Furthermore, the oxidation of HMI restricte...

Reactions of bis (β-diketonato) aluminium (III)-di-μ-isopropoxo di-isopropoxo aluminium(III), [(β-diketo)2Al(μ-OPri)2Al(OPri)2], with 2-mercaptoethanol, [HO(CH2)2 SH], and 2,2′-thiodiethanol, [HO(CH2)2S(CH2)2OH], in 1:1 stoichiometry have resulted in the synthesis of [(β-diketo)2Al(μ-OPri...

The transient optical absorption band (λmax=290 nm, ε = 2020 dm3mol−1cm−1) produced on pulse radiolysis of N2O saturated aqueous solution (pH = 6.0−10.0) of 2,2′-thiodiethanol (TDE) has been assigned to the product of reaction of OH radicals with the solute. It decayed by second order kinetic...

The crystal and molecular structure of dichlorobis(2,2′-thiodiethanol)cobalt(II) was determined from three-dimensional X-ray data collected by counter methods. The compound crystallizes as prismatic pink plates and belongs to space group P21/c. The unit cell dimensions are a = 6.786(2), b = 11....

The fluorimetric determination of secondary amines based on conversion with sodium hypochlorite to primary amines and the o-phthalaldehydemercaptoethanol (OPA) reagent is discussed. Interference by excess hypochlorite (e.g., oxidation of OPA or conversion of primary amines to chloramines) were...

The polarographic and voltammetric behavior of oxygen, ferrocene, bisbiphenylchromium(I) tetraphenyloborate, TlClO4, Zn(CF3SO3)2, Cd(CF3SO3)2, Cu(CF3SO3)2, Mn(CF3SO3)2, Ni(ClO4)2 · 2H2O, Co(CF3SO3)2 and Pb(CF3SO3)2 has been studied in 2,2-thiodiethanol. The polarographic behavior of Zn(CF3SO3)2...